机构地区: 暨南大学理工学院物理学系
出 处: 《生态科学》 2005年第2期124-126,共3页
摘 要: 内照射剂量的估算在剂量防护中是十分重要的.对居民由于食入大亚湾核污染海洋生物所导致的内照射剂量给出一个评价方法是十分必要的.在对潮流污染扩散进行数值模拟的基础上,得出放射性核素浓度场的分布,进一步给出一个内照射剂量估算方法.根据这一估算方法,可以简便的估算出每个居民由于食入大亚湾海洋生物所致的辐射剂量.估算结果表明,每人每年由于食入大亚湾海洋生物所导致的内照射剂量在10-6 ~10-95v之间,低于人类每年人均受到的本底辐射. The estimation of internal radiation dose is very important in radiation protection. It is necessary to provide an method to assess the effects of internal exposure dose on the local residents due to the absorption of this marine biota in Daya Bay. Base on the numerical simulation of tide pollution diffusing, a internal exposure dose rate assessing model is providedto estimate the radiation dose rate by the absorption of marine biota in Daya Bay. The result showed that internal radiation dose for each person is between 10-6~10-9Sv per year. and it was less than the natural background radiometric radiation level.